Sökning: "Arto Visala"

Hittade 2 avhandlingar innehållade orden Arto Visala.

1. 1. Kinematic Control of Redundant Knuckle Booms with Automatic Path Following Functions

   Författare :Björn Löfgren; Jan Wikander; Arto Finland Helsinki University of Technology Visala; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hydraulic manipulator; redundancy; kinematic control; local optimization; knuckle boom; forest machine; forwarder; boom tip control; joystick control; simulations; path following; Construction engineering; Konstruktionsteknik;

   Sammanfattning : To stay competitive internationally, the Swedish forestry sector must increase its productivity by 2 to 3% annually. There are a variety of ways in which productivity can be increased. One option is to develop remote-controlled or unmanned machines, thus reducing the need for operator intervention. LÄS MER

3. 2. Automation in forestry : development of unmanned forwarders

   Författare :Ola Ringdahl; Thomas Hellström; Tomas Nordfjell; Arto Visala; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Computer science; Datavetenskap; Forest engineering; Skogsteknik; computer and systems sciences; data- och systemvetenskap;

   Sammanfattning : For the last 50 year, forestry operations have become more and more mechanized. In modern forestry in Europe two machines are typically used; a harvester that fells, debranches and cross-cuts the trees into logs and a forwarder that transports them to the nearest road. LÄS MER